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Finding the Fourth Proportional to 69,772.70, 96,288.48 and 39,559.30

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Solution

The fourth proportional to 69,772.70, 96,288.48 and 39,559.30 is: 54,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,772.70 : 96,288.48 = 39,559.30 : x
  2. Step 2: Convert to fraction form
    69,772.70/96,288.48 = 39,559.30/x
  3. Step 3: Cross multiply
    69,772.70x = 96,288.48 × 39,559.30
  4. Step 4: Simplify right side
    69,772.70x = 3,809,104,928.44
  5. Step 5: Solve for x
    x = 3,809,104,928.44/69,772.70
  6. Step 6: Final answer
    x = 54,593.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.